Abstract: To get an accurate evaluation of fire risk in malls, uncertainty measurement evaluation model was built based on comprehensive weighting method. In this model, single index measure evaluation matrix was built by uncertainty measurement. Comprehensive weight of evaluation indexes was calculated based on IIAHP, entropy and sum of deviation square maximizing. Comprehensive measure evaluation vectors of evaluation objects were obtained by single index measure evaluation matrix and comprehensive weight of evaluation indexes. Risk rating and sequencing were judged by comprehensive measure evaluation vectors. Fire risk of malls was evaluated by the established model. 16 evaluation indexes of affecting malls fire risk were selected and uncertainty measure functions of evaluation indexes were built. Fire risk rating and sequencing of 4 malls were obtained by field datum of evaluation indexes. Analysis showed that risk rating and sequencing are consistent with the safety situation of malls. The evaluation results have application value.

Key words: comprehensive weighting, uncertainty measurement, fire risk, improve interval analytic hierarchy process method, entropy